Does spotting mark the end of the cycle? Is my AF too light?

[onthefly]

Might be. Might not be.
Have you had your thyroid levels checked recently? I used to have very light periods before having my thyroid out and going on hormone replacement. I had undiagnosed underactive thyroid. I don't kow that's why there was a difference, might be a coincidence

[Ree*Ree]

Thanks ladies.

MadB I've never had any tests of any kind done before, so I have no idea. Maybe I'll book in to the GP as well...

[onthefly]

If you reckon something's off, then it might be worth having some basic blood tests done.
Some reckon spotting like that indicates lueal phase defect, but I dno't know that it's definitive. Certainly you could have baseline CD hormone test and the CD 21 progesterone test to confirm ovulation and see whether the levels look good